| abstract |
The present invention relates to a polymeric compositions which can be used to form a variety of biodegradable objects and to methods for making the same. In particular, the present invention relates to polymers made from a combination of: (1) the combination of at least two di-p-toluenesulfonic acid salts of a bis-(α-amino acid) α,φ-alkylene diester with at least one active diester; (2) the combination of at least two di-p-toluenesulfonic acid salts of a bis-(α-amino acid) α,φ-alkylene diester with at least one active bis-carbonate of a diol; (3) the combination of at least one di-p-toluenesulfonic acid salts of a bis-(α-amino acid) α,φ-alkylene diester and at least one di-p-toluenesulfonic acid salt of an ester (e.g., a diamino ester) with at least one active diester; and (4) the combination of at least one di-p-toluenesulfonic acid salts of a bis-(α-amino acid) α,φ-alkylene diester and at least one di-p-toluenesulfonic acid salt of an ester (e.g., a diamino ester) with at least one active bis-carbonate of a diol. The present invention also relates to methods for making the above mentioned polymers and uses for same. |